WRITE-ONCE OPTICAL DISC, AND METHOD AND APPARATUS FOR RECORDING MANAGEMENT INFORMATION THEREON

• US 20090122668A1
• Filed: 01/02/2009
• Published: 05/14/2009
• Est. Priority Date: 07/15/2003
• Status: Active Grant

• Current Assignee: Yong Cheol Park
• Original Assignee: Yong Cheol Park
• Inventors: PARK, Yong Cheol
• Granted Patent: US 8,054,718 B2
• Time in Patent Office: Days
• US Class Current: 369/47.140
• CPC Class Codes: G11B 20/1217 on discs
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2020/1235 session, i.e. a contiguous area having its own lead-in area, program area and lead-out area
• CPC Class Codes: G11B 2020/1265 Control data, system data or management information, i.e. data used to access or process user data
• CPC Class Codes: G11B 2020/1285 Status of the record carrier, e.g. space bit maps, flags indicating a formatting status or a write permission
• CPC Class Codes: G11B 2020/1873 Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/235 Multilayer discs, i.e. multiple recording layers accessed from the same side
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs

Abstract

A write-once optical recording medium and a method and apparatus for recording management information on the recording medium, are provided. The recording medium includes at least one recording layer and SRR information on the recording layer. The SRR information pertains to at least one SRR and includes a header, an SRR entry list, and a terminator. The SRR entry list includes a plurality of SRR entries, each of the SRR entries pertaining to an SRR and including at least one status area for storing therein session start information.

Claims

1. A recording medium having at least one recording layer, the recording medium including a plurality of tracks where data is sequentially recorded, the recording medium comprising:

a session including at least one track; and

track information on the at least one recording layer, the track information pertaining to the plurality of tracks and including a track entry list, the track entry list including a plurality of track entries, each track entry pertaining to a track and including a session status field to store session start information indicating whether the pertaining track is a start of the session, a start address field indicating where the pertaining track starts, and a last recorded address field storing the last recorded address of the pertaining track, wherein the session status field is located between the start address field and the last recorded address field.

2. The recording medium of claim 1, wherein the session status field includes one bit assigned to carry the session start information.

3. The recording medium of claim 1, wherein the session status field further stores therein track status information indicating whether the pertaining track is opened or closed.

4. The recording medium of claim 1, wherein the each track entry includes a track status field for storing therein track status information, and the track status area is located at the beginning bits of the each entry.

5. The recording medium of claim 4, wherein the track status information indicates whether the pertaining track is opened or closed.

6. The recording medium of claim 1, wherein the track information further includes a header, and the header includes a list of opened tracks for locating each opened track exiting on the recording medium and a total number of the tracks.

7. The recording medium of claim 1, wherein the track information is stored in a temporary defect management area designated on the at least one recording layer, the temporary defect management area storing therein management information of the recording medium until the recording medium is finalized.

8. The recording medium of claim 1, wherein the recording medium is a write-once optical disc.

9. A method for recording management information on a recording medium having at least one recording layer, the recording medium including a plurality of tracks where data is sequentially recorded, the method comprising:

(a) recording a track information onto the at least one recording layer, the track information pertaining to the plurality of tracks and including a track entry list, the track entry list including a plurality of track entries, each track entry pertaining to a track and including a session status field to store session start information indicating whether the pertaining track is a start of a session formed by at least one track, a start address field indicating where the pertaining track starts, and a last recorded address field storing therein the last recorded address of the pertaining track, wherein the session status field is located between the start address field and the last recorded address field.

10. The method of claim 9, wherein the session status field includes one bit assigned to carry the session start information.

11. The method of claim 9, wherein the recording step (a) further includes:

(a1) storing track information into the session status field, the track information indicating whether the pertaining track is opened or closed.

12. The method of claim 9, wherein the recording step (a) further includes:

(a1) storing track information into a track status field of the pertaining track entry, the track status field being located at the beginning bits of the each track entry.

13. The method of claim 12, wherein the track information indicates whether the pertaining track is opened or closed.

14. The method of claim 9, wherein the track information further includes a header, and the header includes a list of opened tracks for locating each opened track existing on the recording medium and a total number of the tracks.

15. The method of claim 9, wherein the recording step (a) the track information is recorded into a temporary defect management area designated on the at least one recording layer, the temporary defect management area storing therein management information of the recording medium until the recording is finalized.

16. The method of claim 9, wherein the recording medium is a write-once optical disc.

17. An apparatus for recording management information on a recording medium having at least one recording layer, the recording medium including a plurality of tracks where data is sequentially recorded, the apparatus comprising:

an interface configured to communicate with an external device;

a pickup configured to records/reproduce data to/from the recording medium;

a data processor configured to receive and restore a reproduction signal from the recording medium, and modulate a signal proper to the recording medium;

a servo configured to control the pickup to accurately read/record data signal from/to the recording medium;

a memory configured to store therein data temporarily; and

a microcomputer operatively coupled to above components—

the interface, the pickup, the data processor, the servo and the memory—

and configured to control the components so that the apparatus records track information on the at least one recording layer, the track information pertaining to the plurality of tracks and including a track entry list, the track entry list including a plurality of track entries, each track entry pertaining to a track and including a session status field for storing therein session start information indicating whether the pertaining track is a start of a session formed by at least one track, a start address field indicating where the pertaining track starts, and a last recorded address field storing therein the last recorded address of the pertaining track, wherein the session status field is located between the start address field and the last recorded address field.

18. The apparatus of claim 17, wherein the session status field includes one bit assigned to carry the session start information.

19. The apparatus of claim 17, wherein the session status field includes track status information indicating whether the pertaining track is opened or closed.

20. The apparatus of claim 17, wherein the each track entry includes a track status field for storing therein track status information, and the track status area is located at the beginning bits of the each entry.

21. The apparatus of claim 20, wherein the track information indicates whether the pertaining track is opened or closed.

22. The apparatus of claim 17, wherein the track information further includes a header, and the header includes a list of opened tracks for locating each opened track existing on the recording medium and a total number of the tracks.

23. The apparatus of claim 17, wherein the apparatus records the track information onto a temporary defect management area designated on the at least one recording layer, the temporary defect management area storing therein management information of the recording medium until the recording medium is finalized.

24. The apparatus of claim 17, wherein the recording medium is a write-once optical disc.

25. The apparatus of claim 17, further comprising:

a host configured for issue to the microprocessor a command for recording/reproducing information on/from the recording medium.

26. An apparatus for recording management information on a recording medium having at least one recording layer, the recording medium including a plurality of tracks where data is sequentially recorded, the apparatus comprising:

a pickup configured to records/reproduce data to/from the recording medium; and

a microcomputer, operatively coupled to the pickup, configured to include a module configured to control the pickup to record track information on the at least one recording layer, the track information pertaining to the plurality of tracks and including a track entry list, the track entry list including a plurality of track entries, each track entry pertaining to a track and including a session status field for storing therein session start information indicating whether the pertaining track is a start of a session formed by at least one track, a start address field indicating where the pertaining track starts, and a last recorded address field storing therein the last recorded address of the pertaining track, wherein the session status field is located between the start address field and the last recorded address field.